Trace number 3375172

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
MPhaseSAT64 2011-05-14 (fixed)SAT 1.13982 1.1413

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S1786071619-083.SATISFIABLE.cnf
MD5SUM4c9b0d97324ee5d84961ef01705e1399
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data 

1.11/1.14	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.11/1.14	c input CNF file=HOME/instance-3375172-1305449694.cnf 
1.11/1.14	c Clause#=4450  var#=50  ratio=89 
1.11/1.14	c Simplified clause#=4450 
1.11/1.14	c XOR_varElimination deleted var#=0 clauses#=4450 
1.11/1.14	c inative var#=0 
1.11/1.14	c free var#=50  
1.11/1.14	c local search on 
1.11/1.14	c A solution found by local search 
1.11/1.14	c unfixed var#=0 var#=50 
1.11/1.14	c verified 
1.11/1.14	c 
1.11/1.14	s SATISFIABLE
1.11/1.14	v -1 -2 3 -4 5 -6 -7 8 -9 -10 11 -12 13 -14 15 16 -17 18 19 -20 21 -22 23 -24 25 -26 -27 28 29 -30 -31 32 33 34 -35 36 37 -38 -39 -40 41 42 -43 -44 -45 -46 -47 48 -49 -50 
1.11/1.14	v 0
1.11/1.14	c 
1.11/1.14	c  Running time=1.138826

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3375172-1305449694/watcher-3375172-1305449694 -o /tmp/evaluation-result-3375172-1305449694/solver-3375172-1305449694 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375172-1305449694.cnf 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.83 3.13 3.68 5/361 13893
/proc/meminfo: memFree=26125784/32951124 swapFree=53501236/67111528
[pid=13893] ppid=13891 vsize=12428 CPUtime=0 cores=4,6
/proc/13893/stat : 13893 (MPhaseSAT64) R 13891 13893 13135 0 -1 4202496 523 0 0 0 0 0 0 0 25 0 1 0 656572045 12726272 426 33554432000 4194304 4479436 140735356239152 18446744073709551615 4265257 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13893/statm: 3107 426 279 70 0 227 0

[startup+0.014159 s]
/proc/loadavg: 2.83 3.13 3.68 5/361 13893
/proc/meminfo: memFree=26125784/32951124 swapFree=53501236/67111528
[pid=13893] ppid=13891 vsize=12704 CPUtime=0.01 cores=4,6
/proc/13893/stat : 13893 (MPhaseSAT64) R 13891 13893 13135 0 -1 4202496 581 0 0 0 1 0 0 0 25 0 1 0 656572045 13008896 484 33554432000 4194304 4479436 140735356239152 18446744073709551615 4218925 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13893/statm: 3176 484 286 70 0 296 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12704

[startup+0.100208 s]
/proc/loadavg: 2.83 3.13 3.68 5/361 13893
/proc/meminfo: memFree=26125784/32951124 swapFree=53501236/67111528
[pid=13893] ppid=13891 vsize=13552 CPUtime=0.09 cores=4,6
/proc/13893/stat : 13893 (MPhaseSAT64) R 13891 13893 13135 0 -1 4202496 888 0 0 0 9 0 0 0 25 0 1 0 656572045 13877248 761 33554432000 4194304 4479436 140735356239152 18446744073709551615 4341855 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13893/statm: 3388 761 304 70 0 508 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13552

[startup+0.300156 s]
/proc/loadavg: 2.83 3.13 3.68 5/361 13893
/proc/meminfo: memFree=26125784/32951124 swapFree=53501236/67111528
[pid=13893] ppid=13891 vsize=13552 CPUtime=0.29 cores=4,6
/proc/13893/stat : 13893 (MPhaseSAT64) R 13891 13893 13135 0 -1 4202496 909 0 0 0 29 0 0 0 25 0 1 0 656572045 13877248 782 33554432000 4194304 4479436 140735356239152 18446744073709551615 4450999 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13893/statm: 3388 782 325 70 0 508 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13552

[startup+0.701091 s]
/proc/loadavg: 2.83 3.13 3.68 5/361 13893
/proc/meminfo: memFree=26125784/32951124 swapFree=53501236/67111528
[pid=13893] ppid=13891 vsize=15888 CPUtime=0.69 cores=4,6
/proc/13893/stat : 13893 (MPhaseSAT64) R 13891 13893 13135 0 -1 4202496 1525 0 0 0 69 0 0 0 25 0 1 0 656572045 16269312 1366 33554432000 4194304 4479436 140735356239152 18446744073709551615 4450921 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13893/statm: 3972 1366 325 70 0 1092 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15888

Solver just ended. Dumping a history of the last processes samples

[startup+1.11303 s]
/proc/loadavg: 2.92 3.14 3.68 6/362 13894
/proc/meminfo: memFree=26120700/32951124 swapFree=53501236/67111528
[pid=13893] ppid=13891 vsize=16144 CPUtime=1.11 cores=4,6
/proc/13893/stat : 13893 (MPhaseSAT64) R 13891 13893 13135 0 -1 4202496 1592 0 0 0 111 0 0 0 25 0 1 0 656572045 16531456 1433 33554432000 4194304 4479436 140735356239152 18446744073709551615 4295238 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13893/statm: 4036 1433 328 70 0 1156 0
Current children cumulated CPU time (s) 1.11
Current children cumulated vsize (KiB) 16144

Child status: 10
Real time (s): 1.1413
CPU time (s): 1.13982
CPU user time (s): 1.13883
CPU system time (s): 0.000999
CPU usage (%): 99.8703
Max. virtual memory (cumulated for all children) (KiB): 16144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.13883
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1600
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 4
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node103 at 2011-05-15 10:54:54
IDJOB=3375172
IDBENCH=82881
IDSOLVER=1855
FILE ID=node103/3375172-1305449694
RUNJOBID= node103-1305449644-13704
PBS_JOBID= 13324856
Free space on /tmp= 73048 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S1786071619-083.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375172-1305449694/watcher-3375172-1305449694 -o /tmp/evaluation-result-3375172-1305449694/solver-3375172-1305449694 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375172-1305449694.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 4c9b0d97324ee5d84961ef01705e1399
RANDOM SEED=567380966

node103.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.71
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.858
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      26125940 kB
Buffers:        311792 kB
Cached:        3956788 kB
SwapCached:     340192 kB
Active:        1364448 kB
Inactive:      5188528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      26125940 kB
SwapTotal:    67111528 kB
SwapFree:     53501236 kB
Dirty:             380 kB
Writeback:           0 kB
AnonPages:     1954896 kB
Mapped:          11648 kB
Slab:           152588 kB
PageTables:      53576 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 78368468 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73048 MiB
End job on node103 at 2011-05-15 10:54:56